./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 71a59a3596571aa79fb44a527a9b6a33b40c9acdae164ed96a4388ebcdf2e0df --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 20:27:17,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 20:27:17,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 20:27:17,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 20:27:17,218 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 20:27:17,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 20:27:17,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 20:27:17,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 20:27:17,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 20:27:17,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 20:27:17,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 20:27:17,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 20:27:17,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 20:27:17,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 20:27:17,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 20:27:17,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 20:27:17,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 20:27:17,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 20:27:17,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 20:27:17,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 20:27:17,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 20:27:17,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 20:27:17,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 20:27:17,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 20:27:17,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 20:27:17,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 20:27:17,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 20:27:17,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 20:27:17,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 20:27:17,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 20:27:17,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 20:27:17,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 20:27:17,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 20:27:17,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 20:27:17,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 20:27:17,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 20:27:17,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 20:27:17,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 20:27:17,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 20:27:17,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 20:27:17,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 20:27:17,273 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 20:27:17,300 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 20:27:17,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 20:27:17,302 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 20:27:17,302 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 20:27:17,303 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 20:27:17,303 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 20:27:17,303 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 20:27:17,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 20:27:17,304 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 20:27:17,304 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 20:27:17,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 20:27:17,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 20:27:17,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 20:27:17,305 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 20:27:17,305 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 20:27:17,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 20:27:17,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 20:27:17,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 20:27:17,306 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 20:27:17,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:27:17,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 20:27:17,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 20:27:17,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 20:27:17,306 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 20:27:17,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 20:27:17,306 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 20:27:17,307 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 20:27:17,307 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 20:27:17,307 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 20:27:17,307 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71a59a3596571aa79fb44a527a9b6a33b40c9acdae164ed96a4388ebcdf2e0df [2021-11-05 20:27:17,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 20:27:17,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 20:27:17,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 20:27:17,620 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 20:27:17,620 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 20:27:17,621 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i [2021-11-05 20:27:17,668 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/139124e9a/c95b93c3bb60495bbe444fb8a972875e/FLAGe323e469f [2021-11-05 20:27:18,237 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 20:27:18,238 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i [2021-11-05 20:27:18,265 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/139124e9a/c95b93c3bb60495bbe444fb8a972875e/FLAGe323e469f [2021-11-05 20:27:18,457 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/139124e9a/c95b93c3bb60495bbe444fb8a972875e [2021-11-05 20:27:18,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 20:27:18,460 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 20:27:18,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 20:27:18,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 20:27:18,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 20:27:18,464 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:27:18" (1/1) ... [2021-11-05 20:27:18,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cf0d572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:18, skipping insertion in model container [2021-11-05 20:27:18,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:27:18" (1/1) ... [2021-11-05 20:27:18,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 20:27:18,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 20:27:19,566 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311030,311043] [2021-11-05 20:27:19,573 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311196,311209] [2021-11-05 20:27:19,573 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311360,311373] [2021-11-05 20:27:19,573 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311525,311538] [2021-11-05 20:27:19,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:27:19,608 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 20:27:19,818 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311030,311043] [2021-11-05 20:27:19,819 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311196,311209] [2021-11-05 20:27:19,819 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311360,311373] [2021-11-05 20:27:19,819 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311525,311538] [2021-11-05 20:27:19,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:27:19,901 INFO L208 MainTranslator]: Completed translation [2021-11-05 20:27:19,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:19 WrapperNode [2021-11-05 20:27:19,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 20:27:19,903 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 20:27:19,903 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 20:27:19,903 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 20:27:19,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:19" (1/1) ... [2021-11-05 20:27:19,974 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:19" (1/1) ... [2021-11-05 20:27:20,392 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 20:27:20,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 20:27:20,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 20:27:20,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 20:27:20,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:19" (1/1) ... [2021-11-05 20:27:20,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:19" (1/1) ... [2021-11-05 20:27:20,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:19" (1/1) ... [2021-11-05 20:27:20,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:19" (1/1) ... [2021-11-05 20:27:20,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:19" (1/1) ... [2021-11-05 20:27:20,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:19" (1/1) ... [2021-11-05 20:27:20,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:19" (1/1) ... [2021-11-05 20:27:20,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 20:27:20,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 20:27:20,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 20:27:20,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 20:27:20,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:19" (1/1) ... [2021-11-05 20:27:20,839 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:27:20,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 20:27:20,855 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 20:27:20,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 20:27:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 20:27:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 20:27:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-05 20:27:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 20:27:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 20:27:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 20:27:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 20:27:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 20:27:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 20:27:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 20:27:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 20:27:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 20:27:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 20:27:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 20:27:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 20:27:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 20:27:20,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 20:27:27,436 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#11: ldv_switch_0_#res := 0; [2021-11-05 20:27:27,437 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#10: ldv_switch_0_#res := 0; [2021-11-05 20:27:27,437 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#13: ldv_switch_0_#res := 0; [2021-11-05 20:27:27,437 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#12: ldv_switch_0_#res := 0; [2021-11-05 20:27:27,437 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#15: ldv_switch_0_#res := 0; [2021-11-05 20:27:27,437 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#14: ldv_switch_0_#res := 0; [2021-11-05 20:27:27,437 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#16: ldv_switch_0_#res := 0; [2021-11-05 20:27:27,438 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-05 20:27:27,438 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-05 20:27:27,438 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res := 0; [2021-11-05 20:27:27,438 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res := 0; [2021-11-05 20:27:27,438 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-05 20:27:27,438 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#7: ldv_switch_0_#res := 0; [2021-11-05 20:27:27,438 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#8: ldv_switch_0_#res := 0; [2021-11-05 20:27:27,438 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#9: ldv_switch_0_#res := 0; [2021-11-05 20:27:27,439 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 20:27:27,439 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 20:27:27,465 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 20:27:27,466 INFO L299 CfgBuilder]: Removed 3647 assume(true) statements. [2021-11-05 20:27:27,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:27:27 BoogieIcfgContainer [2021-11-05 20:27:27,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 20:27:27,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 20:27:27,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 20:27:27,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 20:27:27,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 08:27:18" (1/3) ... [2021-11-05 20:27:27,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79fe671b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:27:27, skipping insertion in model container [2021-11-05 20:27:27,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:19" (2/3) ... [2021-11-05 20:27:27,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79fe671b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:27:27, skipping insertion in model container [2021-11-05 20:27:27,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:27:27" (3/3) ... [2021-11-05 20:27:27,478 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i [2021-11-05 20:27:27,482 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 20:27:27,482 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2021-11-05 20:27:27,534 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 20:27:27,539 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 20:27:27,539 INFO L340 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2021-11-05 20:27:27,591 INFO L276 IsEmpty]: Start isEmpty. Operand has 3652 states, 3624 states have (on average 1.3449227373068433) internal successors, (4874), 3651 states have internal predecessors, (4874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:27:27,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-11-05 20:27:27,615 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:27:27,616 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:27:27,616 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-05 20:27:27,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:27:27,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1145313028, now seen corresponding path program 1 times [2021-11-05 20:27:27,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:27:27,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143545741] [2021-11-05 20:27:27,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:27:27,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:27:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:27:28,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:27:28,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:27:28,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143545741] [2021-11-05 20:27:28,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143545741] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:27:28,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:27:28,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:27:28,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927951676] [2021-11-05 20:27:28,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:27:28,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:27:28,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:27:28,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:27:28,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:27:28,194 INFO L87 Difference]: Start difference. First operand has 3652 states, 3624 states have (on average 1.3449227373068433) internal successors, (4874), 3651 states have internal predecessors, (4874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:27:29,319 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:27:29,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:27:29,589 INFO L93 Difference]: Finished difference Result 9183 states and 12327 transitions. [2021-11-05 20:27:29,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:27:29,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 241 [2021-11-05 20:27:29,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:27:29,627 INFO L225 Difference]: With dead ends: 9183 [2021-11-05 20:27:29,628 INFO L226 Difference]: Without dead ends: 5789 [2021-11-05 20:27:29,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.00ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:27:29,640 INFO L933 BasicCegarLoop]: 4797 mSDtfsCounter, 3675 mSDsluCounter, 4650 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1131.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3675 SdHoareTripleChecker+Valid, 9447 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.19ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1207.26ms IncrementalHoareTripleChecker+Time [2021-11-05 20:27:29,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3675 Valid, 9447 Invalid, 34 Unknown, 0 Unchecked, 19.19ms Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 1207.26ms Time] [2021-11-05 20:27:29,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5789 states. [2021-11-05 20:27:29,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5789 to 5757. [2021-11-05 20:27:29,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5757 states, 5729 states have (on average 1.2860883225693838) internal successors, (7368), 5756 states have internal predecessors, (7368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:27:29,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5757 states to 5757 states and 7368 transitions. [2021-11-05 20:27:29,795 INFO L78 Accepts]: Start accepts. Automaton has 5757 states and 7368 transitions. Word has length 241 [2021-11-05 20:27:29,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:27:29,796 INFO L470 AbstractCegarLoop]: Abstraction has 5757 states and 7368 transitions. [2021-11-05 20:27:29,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:27:29,797 INFO L276 IsEmpty]: Start isEmpty. Operand 5757 states and 7368 transitions. [2021-11-05 20:27:29,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-11-05 20:27:29,801 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:27:29,801 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:27:29,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 20:27:29,802 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-05 20:27:29,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:27:29,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1766192994, now seen corresponding path program 1 times [2021-11-05 20:27:29,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:27:29,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621604945] [2021-11-05 20:27:29,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:27:29,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:27:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:27:30,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:27:30,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:27:30,039 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621604945] [2021-11-05 20:27:30,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621604945] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:27:30,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:27:30,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:27:30,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616803381] [2021-11-05 20:27:30,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:27:30,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:27:30,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:27:30,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:27:30,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:27:30,049 INFO L87 Difference]: Start difference. First operand 5757 states and 7368 transitions. Second operand has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:27:31,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:27:31,309 INFO L93 Difference]: Finished difference Result 13047 states and 16804 transitions. [2021-11-05 20:27:31,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:27:31,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 255 [2021-11-05 20:27:31,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:27:31,334 INFO L225 Difference]: With dead ends: 13047 [2021-11-05 20:27:31,335 INFO L226 Difference]: Without dead ends: 7886 [2021-11-05 20:27:31,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.56ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:27:31,346 INFO L933 BasicCegarLoop]: 4139 mSDtfsCounter, 3089 mSDsluCounter, 4101 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1025.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3089 SdHoareTripleChecker+Valid, 8240 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.70ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1112.64ms IncrementalHoareTripleChecker+Time [2021-11-05 20:27:31,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3089 Valid, 8240 Invalid, 48 Unknown, 0 Unchecked, 8.70ms Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 1112.64ms Time] [2021-11-05 20:27:31,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7886 states. [2021-11-05 20:27:31,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7886 to 7760. [2021-11-05 20:27:31,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7760 states, 7732 states have (on average 1.291386445938955) internal successors, (9985), 7759 states have internal predecessors, (9985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:27:31,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7760 states to 7760 states and 9985 transitions. [2021-11-05 20:27:31,515 INFO L78 Accepts]: Start accepts. Automaton has 7760 states and 9985 transitions. Word has length 255 [2021-11-05 20:27:31,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:27:31,516 INFO L470 AbstractCegarLoop]: Abstraction has 7760 states and 9985 transitions. [2021-11-05 20:27:31,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:27:31,518 INFO L276 IsEmpty]: Start isEmpty. Operand 7760 states and 9985 transitions. [2021-11-05 20:27:31,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2021-11-05 20:27:31,521 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:27:31,522 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:27:31,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 20:27:31,522 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-05 20:27:31,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:27:31,523 INFO L85 PathProgramCache]: Analyzing trace with hash -196580125, now seen corresponding path program 1 times [2021-11-05 20:27:31,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:27:31,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995013433] [2021-11-05 20:27:31,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:27:31,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:27:31,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:27:31,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:27:31,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:27:31,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995013433] [2021-11-05 20:27:31,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995013433] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:27:31,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:27:31,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:27:31,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816569707] [2021-11-05 20:27:31,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:27:31,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:27:31,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:27:31,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:27:31,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:27:31,727 INFO L87 Difference]: Start difference. First operand 7760 states and 9985 transitions. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:27:32,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:27:32,601 INFO L93 Difference]: Finished difference Result 19034 states and 24626 transitions. [2021-11-05 20:27:32,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:27:32,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 256 [2021-11-05 20:27:32,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:27:32,638 INFO L225 Difference]: With dead ends: 19034 [2021-11-05 20:27:32,638 INFO L226 Difference]: Without dead ends: 11870 [2021-11-05 20:27:32,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.52ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:27:32,656 INFO L933 BasicCegarLoop]: 4506 mSDtfsCounter, 3077 mSDsluCounter, 4102 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 612.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3077 SdHoareTripleChecker+Valid, 8608 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.92ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 696.82ms IncrementalHoareTripleChecker+Time [2021-11-05 20:27:32,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3077 Valid, 8608 Invalid, 48 Unknown, 0 Unchecked, 8.92ms Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 696.82ms Time] [2021-11-05 20:27:32,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11870 states. [2021-11-05 20:27:32,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11870 to 11742. [2021-11-05 20:27:32,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11742 states, 11714 states have (on average 1.2961413693016903) internal successors, (15183), 11741 states have internal predecessors, (15183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:27:32,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11742 states to 11742 states and 15183 transitions. [2021-11-05 20:27:32,916 INFO L78 Accepts]: Start accepts. Automaton has 11742 states and 15183 transitions. Word has length 256 [2021-11-05 20:27:32,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:27:32,916 INFO L470 AbstractCegarLoop]: Abstraction has 11742 states and 15183 transitions. [2021-11-05 20:27:32,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:27:32,917 INFO L276 IsEmpty]: Start isEmpty. Operand 11742 states and 15183 transitions. [2021-11-05 20:27:32,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-11-05 20:27:32,921 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:27:32,921 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:27:32,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 20:27:32,922 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-05 20:27:32,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:27:32,923 INFO L85 PathProgramCache]: Analyzing trace with hash 251130179, now seen corresponding path program 1 times [2021-11-05 20:27:32,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:27:32,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313509072] [2021-11-05 20:27:32,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:27:32,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:27:32,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:27:33,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:27:33,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:27:33,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313509072] [2021-11-05 20:27:33,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313509072] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:27:33,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:27:33,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:27:33,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956891307] [2021-11-05 20:27:33,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:27:33,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:27:33,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:27:33,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:27:33,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:27:33,154 INFO L87 Difference]: Start difference. First operand 11742 states and 15183 transitions. Second operand has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:27:34,366 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:27:34,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:27:34,736 INFO L93 Difference]: Finished difference Result 30666 states and 39815 transitions. [2021-11-05 20:27:34,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:27:34,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 257 [2021-11-05 20:27:34,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:27:34,782 INFO L225 Difference]: With dead ends: 30666 [2021-11-05 20:27:34,782 INFO L226 Difference]: Without dead ends: 19520 [2021-11-05 20:27:34,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.54ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:27:34,802 INFO L933 BasicCegarLoop]: 4885 mSDtfsCounter, 3069 mSDsluCounter, 4103 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1236.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3069 SdHoareTripleChecker+Valid, 8988 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.89ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1335.46ms IncrementalHoareTripleChecker+Time [2021-11-05 20:27:34,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3069 Valid, 8988 Invalid, 48 Unknown, 0 Unchecked, 13.89ms Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 1335.46ms Time] [2021-11-05 20:27:34,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19520 states. [2021-11-05 20:27:35,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19520 to 19390. [2021-11-05 20:27:35,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19390 states, 19362 states have (on average 1.2995558310091933) internal successors, (25162), 19389 states have internal predecessors, (25162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:27:35,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19390 states to 19390 states and 25162 transitions. [2021-11-05 20:27:35,154 INFO L78 Accepts]: Start accepts. Automaton has 19390 states and 25162 transitions. Word has length 257 [2021-11-05 20:27:35,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:27:35,155 INFO L470 AbstractCegarLoop]: Abstraction has 19390 states and 25162 transitions. [2021-11-05 20:27:35,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:27:35,155 INFO L276 IsEmpty]: Start isEmpty. Operand 19390 states and 25162 transitions. [2021-11-05 20:27:35,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-11-05 20:27:35,159 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:27:35,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:27:35,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 20:27:35,160 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-05 20:27:35,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:27:35,160 INFO L85 PathProgramCache]: Analyzing trace with hash 728372904, now seen corresponding path program 1 times [2021-11-05 20:27:35,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:27:35,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27113361] [2021-11-05 20:27:35,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:27:35,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:27:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:27:35,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:27:35,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:27:35,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27113361] [2021-11-05 20:27:35,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27113361] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:27:35,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:27:35,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:27:35,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773764977] [2021-11-05 20:27:35,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:27:35,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:27:35,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:27:35,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:27:35,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:27:35,400 INFO L87 Difference]: Start difference. First operand 19390 states and 25162 transitions. Second operand has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:27:36,828 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:27:37,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:27:37,399 INFO L93 Difference]: Finished difference Result 52862 states and 68790 transitions. [2021-11-05 20:27:37,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:27:37,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 258 [2021-11-05 20:27:37,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:27:37,473 INFO L225 Difference]: With dead ends: 52862 [2021-11-05 20:27:37,473 INFO L226 Difference]: Without dead ends: 34068 [2021-11-05 20:27:37,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.48ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:27:37,506 INFO L933 BasicCegarLoop]: 5272 mSDtfsCounter, 3088 mSDsluCounter, 4104 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1458.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3088 SdHoareTripleChecker+Valid, 9376 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.56ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1568.67ms IncrementalHoareTripleChecker+Time [2021-11-05 20:27:37,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3088 Valid, 9376 Invalid, 48 Unknown, 0 Unchecked, 8.56ms Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 1568.67ms Time] [2021-11-05 20:27:37,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34068 states. [2021-11-05 20:27:38,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34068 to 33936. [2021-11-05 20:27:38,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33936 states, 33908 states have (on average 1.3016397310369234) internal successors, (44136), 33935 states have internal predecessors, (44136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:27:38,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33936 states to 33936 states and 44136 transitions. [2021-11-05 20:27:38,493 INFO L78 Accepts]: Start accepts. Automaton has 33936 states and 44136 transitions. Word has length 258 [2021-11-05 20:27:38,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:27:38,493 INFO L470 AbstractCegarLoop]: Abstraction has 33936 states and 44136 transitions. [2021-11-05 20:27:38,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:27:38,494 INFO L276 IsEmpty]: Start isEmpty. Operand 33936 states and 44136 transitions. [2021-11-05 20:27:38,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-11-05 20:27:38,498 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:27:38,498 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:27:38,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 20:27:38,499 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-05 20:27:38,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:27:38,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1600673176, now seen corresponding path program 1 times [2021-11-05 20:27:38,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:27:38,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705771944] [2021-11-05 20:27:38,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:27:38,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:27:38,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:27:38,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:27:38,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:27:38,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705771944] [2021-11-05 20:27:38,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705771944] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:27:38,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:27:38,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:27:38,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630958432] [2021-11-05 20:27:38,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:27:38,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:27:38,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:27:38,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:27:38,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:27:38,660 INFO L87 Difference]: Start difference. First operand 33936 states and 44136 transitions. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:27:40,141 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:27:41,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:27:41,135 INFO L93 Difference]: Finished difference Result 94590 states and 123243 transitions. [2021-11-05 20:27:41,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:27:41,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 259 [2021-11-05 20:27:41,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:27:41,277 INFO L225 Difference]: With dead ends: 94590 [2021-11-05 20:27:41,278 INFO L226 Difference]: Without dead ends: 61250 [2021-11-05 20:27:41,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.57ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:27:41,335 INFO L933 BasicCegarLoop]: 5640 mSDtfsCounter, 3091 mSDsluCounter, 4105 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1509.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3091 SdHoareTripleChecker+Valid, 9745 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.91ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1618.66ms IncrementalHoareTripleChecker+Time [2021-11-05 20:27:41,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3091 Valid, 9745 Invalid, 48 Unknown, 0 Unchecked, 8.91ms Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 1618.66ms Time] [2021-11-05 20:27:41,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61250 states. [2021-11-05 20:27:42,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61250 to 61116. [2021-11-05 20:27:42,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61116 states, 61088 states have (on average 1.3025962545835517) internal successors, (79573), 61115 states have internal predecessors, (79573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:27:42,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61116 states to 61116 states and 79573 transitions. [2021-11-05 20:27:42,768 INFO L78 Accepts]: Start accepts. Automaton has 61116 states and 79573 transitions. Word has length 259 [2021-11-05 20:27:42,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:27:42,770 INFO L470 AbstractCegarLoop]: Abstraction has 61116 states and 79573 transitions. [2021-11-05 20:27:42,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:27:42,770 INFO L276 IsEmpty]: Start isEmpty. Operand 61116 states and 79573 transitions. [2021-11-05 20:27:42,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-11-05 20:27:42,775 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:27:42,775 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:27:42,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 20:27:42,775 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-05 20:27:42,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:27:42,776 INFO L85 PathProgramCache]: Analyzing trace with hash 501710317, now seen corresponding path program 1 times [2021-11-05 20:27:42,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:27:42,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325128292] [2021-11-05 20:27:42,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:27:42,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:27:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:27:42,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:27:42,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:27:42,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325128292] [2021-11-05 20:27:42,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325128292] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:27:42,915 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:27:42,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:27:42,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530969933] [2021-11-05 20:27:42,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:27:42,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:27:42,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:27:42,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:27:42,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:27:42,917 INFO L87 Difference]: Start difference. First operand 61116 states and 79573 transitions. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:27:44,516 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:27:46,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:27:46,558 INFO L93 Difference]: Finished difference Result 171464 states and 223465 transitions. [2021-11-05 20:27:46,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:27:46,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 260 [2021-11-05 20:27:46,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:27:46,897 INFO L225 Difference]: With dead ends: 171464 [2021-11-05 20:27:46,898 INFO L226 Difference]: Without dead ends: 110944 [2021-11-05 20:27:47,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.58ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:27:47,002 INFO L933 BasicCegarLoop]: 6005 mSDtfsCounter, 3069 mSDsluCounter, 4106 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1627.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3069 SdHoareTripleChecker+Valid, 10111 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.23ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1764.20ms IncrementalHoareTripleChecker+Time [2021-11-05 20:27:47,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3069 Valid, 10111 Invalid, 48 Unknown, 0 Unchecked, 8.23ms Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 1764.20ms Time] [2021-11-05 20:27:47,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110944 states. [2021-11-05 20:27:49,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110944 to 110808. [2021-11-05 20:27:49,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110808 states, 110780 states have (on average 1.3023650478425708) internal successors, (144276), 110807 states have internal predecessors, (144276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:27:49,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110808 states to 110808 states and 144276 transitions. [2021-11-05 20:27:49,542 INFO L78 Accepts]: Start accepts. Automaton has 110808 states and 144276 transitions. Word has length 260 [2021-11-05 20:27:49,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:27:49,543 INFO L470 AbstractCegarLoop]: Abstraction has 110808 states and 144276 transitions. [2021-11-05 20:27:49,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:27:49,543 INFO L276 IsEmpty]: Start isEmpty. Operand 110808 states and 144276 transitions. [2021-11-05 20:27:49,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2021-11-05 20:27:49,546 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:27:49,547 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:27:49,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 20:27:49,547 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-05 20:27:49,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:27:49,548 INFO L85 PathProgramCache]: Analyzing trace with hash 593632461, now seen corresponding path program 1 times [2021-11-05 20:27:49,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:27:49,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698621283] [2021-11-05 20:27:49,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:27:49,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:27:49,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:27:49,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:27:49,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:27:49,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698621283] [2021-11-05 20:27:49,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698621283] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:27:49,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:27:49,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:27:49,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277171906] [2021-11-05 20:27:49,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:27:49,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:27:49,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:27:49,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:27:49,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:27:49,670 INFO L87 Difference]: Start difference. First operand 110808 states and 144276 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:27:54,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:27:54,081 INFO L93 Difference]: Finished difference Result 312205 states and 406646 transitions. [2021-11-05 20:27:54,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:27:54,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 261 [2021-11-05 20:27:54,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:27:54,555 INFO L225 Difference]: With dead ends: 312205 [2021-11-05 20:27:54,556 INFO L226 Difference]: Without dead ends: 201993 [2021-11-05 20:27:54,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.66ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:27:54,741 INFO L933 BasicCegarLoop]: 6392 mSDtfsCounter, 3082 mSDsluCounter, 4107 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 777.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3082 SdHoareTripleChecker+Valid, 10499 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.04ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 890.56ms IncrementalHoareTripleChecker+Time [2021-11-05 20:27:54,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3082 Valid, 10499 Invalid, 48 Unknown, 0 Unchecked, 8.04ms Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 890.56ms Time] [2021-11-05 20:27:54,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201993 states. [2021-11-05 20:27:58,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201993 to 201855. [2021-11-05 20:27:59,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201855 states, 201827 states have (on average 1.3010746827728699) internal successors, (262592), 201854 states have internal predecessors, (262592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:27:59,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201855 states to 201855 states and 262592 transitions. [2021-11-05 20:27:59,920 INFO L78 Accepts]: Start accepts. Automaton has 201855 states and 262592 transitions. Word has length 261 [2021-11-05 20:27:59,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:27:59,921 INFO L470 AbstractCegarLoop]: Abstraction has 201855 states and 262592 transitions. [2021-11-05 20:27:59,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:27:59,921 INFO L276 IsEmpty]: Start isEmpty. Operand 201855 states and 262592 transitions. [2021-11-05 20:27:59,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-11-05 20:27:59,924 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:27:59,924 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:27:59,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 20:27:59,924 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-05 20:27:59,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:27:59,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1562398350, now seen corresponding path program 1 times [2021-11-05 20:27:59,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:27:59,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399433506] [2021-11-05 20:27:59,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:27:59,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:27:59,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:28:00,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:28:00,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:28:00,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399433506] [2021-11-05 20:28:00,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399433506] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:28:00,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:28:00,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:28:00,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758910459] [2021-11-05 20:28:00,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:28:00,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:28:00,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:28:00,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:28:00,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:28:00,059 INFO L87 Difference]: Start difference. First operand 201855 states and 262592 transitions. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:28:07,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:28:07,773 INFO L93 Difference]: Finished difference Result 568290 states and 739641 transitions. [2021-11-05 20:28:07,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:28:07,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 262 [2021-11-05 20:28:07,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:28:08,838 INFO L225 Difference]: With dead ends: 568290 [2021-11-05 20:28:08,839 INFO L226 Difference]: Without dead ends: 367031 [2021-11-05 20:28:09,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.58ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:28:09,130 INFO L933 BasicCegarLoop]: 6766 mSDtfsCounter, 3091 mSDsluCounter, 4108 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 835.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3091 SdHoareTripleChecker+Valid, 10874 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.17ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 958.85ms IncrementalHoareTripleChecker+Time [2021-11-05 20:28:09,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3091 Valid, 10874 Invalid, 48 Unknown, 0 Unchecked, 7.17ms Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 958.85ms Time] [2021-11-05 20:28:09,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367031 states.